#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define rep(i, a, b) for (int i = (a); i <= (b); i++)
#define per(i, a, b) for (int i = (a); i >= (b); i--)
#define endl '\n'
const int N = 2e5 + 5;
const int BITS = 20;
int n, m;
int a[N];
ll ans;
bitset<BITS> cnt;
void del(int x) {
  bitset<BITS> bs(x);
  cnt ^= bs;
}
bool add(int x) {
  bitset<BITS> bs(x);
  if ((cnt & bs).any()) return false;
  cnt |= bs;
  return true;
}
int main() {
  ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  cin >> n;
  rep(i, 1, n) cin >> a[i];
  int l = 0, r = 0;
  while (l <= n) {
    if (l) del(a[l]);
    l++;
    while (r < n && add(a[r + 1])) r++;
    ans += r + 1 - l;
  }
  cout << ans;
  return 0;
}